Heater



J. W. N-EUMANN HEATER Filed July 25. 1917 OGQQQQO @@CQQQ@ @@@QQQQ @@@QQQQ 990000,@ @@mm@ Patented llang.. l2, l924l.

JOHN W. NEUMANN, OF ST. LOUIS,VMISSOURI.

HEATER.

Application flied Jiy 25,' 1917. seria; no. isaeoi.

To allwihom f/may concern:

Be it'kn'own that I, JOHN W. l\l'1iuim\.i\r1\r, acitizen of the UnitedStates, andresidentl ofSt. Louis, in the State lof Missouri, have inventedk certain new and useful Improve ments in Heaters, of whichv the' following is a specification.

rllliisinvention relates-j to heating' devices rangements" of parts hereinafter described' and claimed.

In theaccoI-npari-yingy drawing forming part of this speeilieation and wherein like charactersrefer tolike parts wherever they occur,--V f Figure 1 isf a sideelevation of ya radiator constructed and" arranged i according to' the invention; gk, n p

Figure 2v isa'longitudinal, vertical section; Figure 3 i isav horizontal i section taken on or about the line 3;-3' of vI+`igure-1g Figure 4 is a'f fragmentary, transverse,

vertical section on the line 4;-4 of Figure'l g.

and'

Figure is atop plan View of the burner detached.v

Referring no-w to the drawing, the numerals l, 2, indicate theside walls, and. 3, flin-dicate the endwalls of a rectangular, hollow shell, the joints'at the corners of which are hermeticallyr sealed. As J shown, the corner joints are effected' by flangingv the meetingy edgesof the walls which are of relatively thin sheet metal, and inserting said flanged" portions'into slottedtubes 5.

which tubes are iilledvwitha suitable cement'.

after the flangesv have been spread back Aagainst .thejinner faces of the tubes y(see Figure 3), Thetubes 5 extend below the bottom of the shell to provide legs for supporting it above the Hoor.

The top plate 6 of the shell is also hermetically sealed at its edg^-s which are joined with the side and end walls. This is accomplished as shown in Figures 2 and 4,ae' by Hanging they edge portions of the top plate upwardand rebending the upper edge portions of the side andend walls inward and downward to receive said upstanding flanges of the top plate, and th^n riveting or bolting the engaged marginal portions together. 0n the top plate is secured, as by rivets orbolts, a shorter and narrower supplemental plate 7 whose marginal portions are flanged upward; and between said flanges and the engaged marginal portionsv of the top plate 6 and` the side and end walls isa filling ofcement.

Approximately one-half of the bottom of the shell is open, and the'bottom plate f8" is secured at its edges to the sid and end walls in av manner similar to the top plate 6. One'end portion of this bottom plate: is turned upward, as at 9, to constitute a division wall or battle, and its side marginal portionsare ilanged, as at 10, and riveted orotherwise securedtight againstthe side walls` l and 2 of the shell. The upper edge portion 1I isturned at an inclination toward the end wall4, and just below this. inclined portion is a horizontal slot or a series of perforations l2, the purpose of which will be later explained.

Extending' into the shell, through the end wall 3, centrally between the side walls l and 2and in aplane a little higherthan the bottom .plate 8, is a gas burner 13, which is designed to produce a long, narrow blade-like or flat wield flame. The preferred arrangement of the jet orifices of the burner fory accomplishing this is best shown in Figure 5, there being two double parallel rows in staggered relation, as indicated by the numeral 14. Aside from this feature the burner construction, of itself, forms no particular part of the present invent-ion, but will be subject matter of a separate: application I am about to make.

The burner extends' with its inner end close to the upturned portion 9 of the bottom plate 8, and it is supported near its ends by cross pieces 15, 16, which are fastened at their ends 'to' the side walls 1 and 2 of the shell. The burner is fastened to the cross piece by a yoke or strap 17 whose end portions extend upward through perforations in the cross piece and are screwthreaded to receiveV securing nuts 18. At its opposite end the burneris fastened to the cross piece 16 by a screw or bolt 19.

Secured to the under side of the' burner and spaced therefrom, as by blocks or sleeves 20 through which screws'21are passed, is a kguard and baffle plate 22, which extends substantially the' entire length of the bottom opening of the shell, but is considerably narrower, so as to provide elongated openings 2301i opposite sides of the burner. The side walls 1 and 2 and the end wall 3 are provided with a multiplicity of perforations 24 in the zone of combustion, andthe end wall 3 hasv an opening 25 provided with a door 26 for convenience in lighting the burner.

Located centrally in the shell, between the side walls 1 and 2, and extending diagonally from the upper corner of the end wall 3 and Y .top plate 6l to the lower corner of the end wall 4- and bottom plate 8, is-apipe 27 whose lower end is open. Its upper end is' connected to a transverse, horizontal coupling pipe section 28 which extends through the y-side wall 2 of the shell and is securely fastened by collars 29 vand 30 thereon which clampsaid wall 2. l

Onthe outside of the shell the coupling pipe section`28 hasa pipe 31 connected thereto and extending substantially parallel with'the pipe 27. At'its lower end ,this pipe 31 is connected to a short pipe section 32 which is open at its end and extends through i the wall 2-into the shell close to the bottom at the lower corner of the end wall 4 and is secured lto said-wall 2 in the .same manner as the above mentioned pipe section 28.

vExtending parallel with and under the pipe 31 is a pipe 33 whose upper end portion Vis provided with a cap 34 having a vent opening 35 therein (see Figure. 3), and whose lower end is open and projects into tliefneck36 of Va receptacle 37, said neck beingl ofrv slightly larger diameter than the .pipe so as yto provide clearance for an air inlet opening around the pipe, as will be later explained. About midway between their ends the pipes 31 and 33 are connected by a cross pipe 38. As shown, this connection is effected by an H-shape coupling to Vas the case may be, a rotary circulation is set up within the shell as indicated by the arrows in Figure 2. That is, the direction is upward above the flame, thence ovei` the partition wall 9 towards the end wall 4 and downward and towards the partition wall 9, and thence through the opening 12 in said partition wall 9, the lip 11 serving as a baffle and axis, as it were, about which the current rotates. In the immediate region of the corner of the end wall 4 and bottom plate 8 where the pipe 27 terminates there is practically a dead space where there is no circulation.

Owing to this circulation, as above Set forth, the heavier vapors and moisture re sulting from the burning gas, particularly water gas, is thrown towards the end wall 4 and downward onto the bottom plate 8, and unlesssome means were provided to eliminate this moisture from the shell there would be an accumulation therein to such an extent as to cause imperfect.combustion and produce noxious vapors 'and moisture which would be thrown out into the atmosphere in the room,.the disadvantages and dangers of which are well known.

The elimination of the undesirable products of combustion is effected in the following manner: The upper: portion of the pipe 27 being in the zone of greatest heat becomes heated to: a high temperature. This causes a forced circulation up through the pipe 27, outward through the pipe 28, downward through the pipe 31 to the cross pipe 110 38, and thence upward through 4the ,pipe 33 and out through the vent opening 35. Hence, the heavier vapors thrown off by the before mentioned circulation within the shell are drawn into the pipe 27 and they are con-.115 densed in the pipes 31 and,33, the eondensation being superinduced in the pipe by the outside air which is drawn into the lower end of the pipe through the mouth of the receptacle 37, the water of condensation draining into the receptacle. In this way perfect combustion continues throughout the operation of the heater, the moisture is drawn out of the shell and collected in the receptacle, and the maximum benefit of the heat isobtained as it is given olf from the walls of the shell by radiation, and by the elimination of noxiousfuines and avoidance of an undue increase ini/humidity the disadvantages and danger ordinarily incidental to the use vof gas for heating rooms' are overcome. Y l

l lf desired the vent open1ng35 may comj any unpleasant or noxious fumes or increasing the normal humidity in the room.

ln order to provide a vent to let out gas should there be an undue accumulation thereof vin the shell before the burner is lighted, the top plate is provided with `an opening 41 which is normally closed by a removable. plug 42. There is also a similar opening 43 in the bottom plate. The bottom plate also has thereon a layer of cement or other suitable non-conducting material as an insulation to protect the floor from the heat.

bviously, other heating elements may be used instead `of gas burners, the shell ma be made of cast metal instead of the sheet metal construction shown in the drawing, and the apparatus admits of considerable other modification throughout its entirety without departing from Uthe spirit of the invention as defined in the appended claims, and, therefore, is not limited to| the exact construction and arrangement shown.

What is claimed is:

l. In a gas heat radiator, a hollow shell having a gas burner therein, an exhaust duct in said shell, said duct having its intake end in the zone of lowest temperature and extending through the Zone of highest temperature, an d a condenser out-side of said shell and connected to the outlet end of said exhaust duct, said condenser having a vent o-pening and an air inlet, the vent opening being uppermost.

2. In a gas heat radiator, a hollow shell having a gas burner therein and means for supporting combustion and setting up a rotative circulation of the products of combustion, an exhaust duct located in said shell with its intake end in the lowermost and endinost part of the shell remote from the Zone of combustion and extending upward with its upper portion in the Zone of greatest heat, and a self-draining condenser located on the outside of the shell and connected to the upper end of said exhaust duct, said condenser having a vent opening and an air intake, the vent opening being uppermost.

3. ln a gas heat radiator, a hollow shell having a gas burner therein, said shell have ing an air inlet only to the Zone of combustion and being otherwise air-tight to confine the products of combustion, an exhaust duct in said shell with its intake end remote from the zone of combustion and extending through the zone of greatest heat, and a condenser on the outside of thexshell andV connectedto theVv outlet vend of said exhaust duct, saidcondenser having avent opening and an air intake.

4. Inra gas heat radiator, a rectangular,

hollow shell, a. gasV burner` loca-ted in. the

lower portion and near one end of said shell, said shell having air inlet openings in the region'of said burner, but being otherwise closed so as to confine the products of combustion, there being a partition wall dividing the lower part of said shell, an inclined pipe extending from the upper corner of the shell abo-ve the burner to. the opposite lower corner of the shell, the lower end of the pipe being open-and its upper end having a transverse extension projected through the side wall of the shell and connected to the upper end of a pipe located on the outside of the shell and extending downward at an inclination and having a lateral extension at its lower end which is projected into the lower corner of the shell, la second pipe on the outside of the shell extending substantially parallel with said other outer pipe and being cross connected thereto intermediate the ends thereof, said second mentioned outer pipe having a vented closure at its upper end and its lower end being open and projecting into a receptacle with an open space between.

5. In a gas hea-t radiator, a rect-angular, hollow shell, a gas burner located in the lower portion and near one end of said shell, said shell having air inlet openings in the region of said burner, but being otherwise closed so as to confine the products of combustion, there being a transverse partition wall dividing the lower part of said shell, said wall extending to abo-ut the middle of the shell and having its upper marginal portion turned towards the end of the shell opposite to that which the burner is adjan cent, and being provided with an opening or openings just below said marginal portion, an inclined pipe extending from the upper corner of the shell abovethe burner to the opposite lower corner, the lower end of the pipe being open and its upper end having a transverse extension projected through the side wall of the shell and connected to the upper end of a pipe located on the outside of the shell and extending downward at an inclination and having a lateral extension at its lower end which is projected into the lower corner of said shell, a second pipe on the outside of the shell extending substantially parallel with said other outer pipe and being cross connected thereto intermediate the ends thereof, said sec-ond mentioned outer pipe having a vented closure and projecting into a receptacle with an open space between.

6. In a heater, a hollow shell, a heating at its upper end and its lower end being open element therein, meansfor causing a. revolv? tube located in said shell With itsintake end in the zone of `least heat and terminating olose to the inner face of the bottom of the shell ind in `the peripheralfregion of the revolving body of products, said tube extending upward through the zone of greatest 10 heat and leading outside the upper part of said shell.

Signed at St. Louis. in the State of Missouri, this 21st day of July A. D. 1917.

JOHN W. NEUMANN. 

